...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Corrosion: The Journal of Science and Engineering >Corrosion of Alloys in a Simulated Wood-Waste Fluidizing Bed Power Boiler Environment
【24h】

Corrosion of Alloys in a Simulated Wood-Waste Fluidizing Bed Power Boiler Environment

机译：Corrosion of Alloys in a Simulated Wood-Waste Fluidizing Bed Power Boiler Environment

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

Rapid corrosion of Type 31 OH (UNS S31009) stainless steel fluidizing bed nozzles was observed shortly after start-up of a fluidizing bed power boiler designed to combust a mixture of salt-laden, wood-waste (hogged-fuel), and sludge. The primary cause of corrosion was previously identified as active oxidation, a high-temperature chloridation reaction occurring under thick, chloride-rich ash deposit. Replacing the nozzle metallurgy with a more corrosion-resistant material was one life extension strategy pursued by the mill. To assist the mill in this regard, an accelerated laboratory-based screening test was developed and used to identify materials from Which to fabricate nozzles for field testing in the fluidizing bed power boiler. The accelerated screening test was validated by its consistency with field observations, namely, the corrosion mode and rate exhibited by Type 31 OH stainless steel. Of the various materials evaluated, the nickel-based Alloy 625 (UNS N06625) and Alloy HR160 (UNS N12160) were the most resistant to corrosion in the simulated environments. Alloy 625 was found to be at least seven to 10 times more corrosion resistant than Type 31 OH stainless steel when sulfur dioxide (SO) was present, and about 100 times more corrosion resistant in the absence of SO_2. Based on these tests, four alternative materials were selected for field testing.

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号